save project

div.py

+def new_input():
+    #新建列表
+    total = []
+    while True:
+        unit = input("请输入价格(输入q退出):")
+        #判断
+        if unit=="q":
+            break
+        else:
+            try:
+                unit = int(unit)
+            except:
+                print("请重新输入一个价格!")
+            else:
+                total.append(unit)
+            finally:
+                print('=='*15)
+    return total
+
+#定义计算价格的函数
+def sum_m(money):
+    #存储总价
+    count = 0
+    for i in money:
+        count = count+i
+    return count
+price = new_input()
+pay = sum_m(price)
+print("一共消费了"+str(pay)+"元,您扫码还是现金?")
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